<template>
    <div class="todo-header">
        <input type="text" placeholder="请输入你的任务名称，按回车键确认"  @keyup.enter="queren" v-model="todo"/>
    </div>
</template>

<script>
    import {nanoid} from "nanoid"
    export default {
        name: 'todoheader',
        data(){
            return {
                todo: ''
            }
        },
        methods:{
            queren(){
                const todol = this.todo.trim()
                if(todol=='') return alert('输入值为空')
                const todo = {id:nanoid(),text: todol,done: false}
                this.receive(todo)
                this.todo = ''
            }
        },
        props:["receive"]
    }
</script>

<style scoped>
    .todo-header input {
    width: 560px;
    height: 28px;
    font-size: 14px;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 4px 7px;
    }

    .todo-header input:focus {
    outline: none;
    border-color: rgba(82, 168, 236, 0.8);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
    }
</style>